How is trigonometry used in astronomy?
Trigonometry is essential for astronomy, Besides 2-D trigonometry relating to triangles, spherical trigonometry, relating to spherical triangles, is also important in astronomy.
On the surface of the planet, three great circles form a spherical triangle. 2-D and spherical trigonometry formulas are similar in that they relate the angles of the triangle to the lengths of its arcs.
Ships traveling across oceans and aircraft operating at the highest altitudes trace networks of spherical triangles.
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Trigonometry is used in astronomy to calculate distances, sizes, and positions of celestial objects. It helps astronomers measure angles, determine the distances between stars and galaxies, and predict celestial events such as eclipses and planetary positions.
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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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